If in the ardent temper and sweet spirit of the New Testament we try to discriminate as to what phases of human conduct receive the chief stress, we find the strongest emphasis is on brotherly love and chastity. The ethical service of the Christian church has been greatest in the direction of these two qualities. What it has done for purity is beyond our power to measure. And it is just at that point that even yet the struggle of humanity to emerge from the bestial condition seems most difficult and doubtful. Some writer has remarked that Christianity apparently introduced no really new virtue into human society, with the exception of male chastity. Shakspere in one sonnet gives tremendous expression to the evil of lust, with this conclusion:-- "This all the world doth know; yet none know well To shun the heaven, that leadeth to this hell." Christianity, in a way of its own, opened a gate out of that hell. The gate was the power of a pure spiritual affection. Paul describes, in language that strikes home to-day, the war of flesh and spirit. For him, its conclusion is: "O wretched man that I am! Who shall deliver me from the body of this death? I thank God through Jesus Christ our Lord!" At the crisis there rises in his spirit the consciousness, vivid as a personal presence, of that great, pure, loving soul; and temptation falls dead. Augustine relates more fully a like experience. The turning-point of his life comes when, still bound after long struggles by a sinful tie, there comes to him the message, "Put ye on the Lord Jesus Christ, and make not provision for the flesh to fulfill the lusts thereof." The church has not confined itself to a single form of influence. It has invested the command to purity with the sanction of a divine behest; has used threats and penalties; has employed asceticism, often with most disastrous results; has appealed variously to the spiritual imagination with legend and story. The fresh blood of the Northern peoples has come in to reenforce the spent and struggling morality of the South. A romantic conception of love has blended nature's two great forces--sense and spirit--instead of setting them in opposition, and has invested wedlock with its true sanctity, in place of the false exaltation of celibacy. And, under various influences, the relation of the sexes has upon the whole been so far heightened that we see this at the end of two thousand years,--that marriage, which Paul himself looked upon as a kind of necessary evil, is recognized as the best guardian and teacher of purity. The connection between the two most strongly marked phases of Christian morality--between love and purity--is not an arbitrary or accidental one. It is an ideal affection that best masters the sensuous nature. In the words of "Ecce Homo," "No heart is pure that is not passionate; no virtue is safe that is not enthusiastic."